Questions & Answers about Король подписал документ.
Подписал is the past tense, masculine singular form of the verb подписать.
- подписать = the infinitive
- подписал = signed / has signed (with a masculine subject)
In Russian, past tense forms are built differently depending on gender and number:
- masculine: подписал
- feminine: подписала
- neuter: подписало
- plural: подписали
Because король is masculine, the verb is подписал.
In Russian, past tense verbs agree with the subject in gender and number.
So:
- король is a masculine noun
- therefore the verb must be masculine too: подписал
Compare:
- Король подписал документ.
- Королева подписала документ.
- Окно закрылось. (neuter subject)
- Люди подписали документ. (plural subject)
This is different from English, where signed stays the same.